import Vue from 'vue'
import Router from 'vue-router'
import Login from '@/components/Login'
import Home from '@/components/Home'
import Welcome from '@/components/Welcome'
import Users from '@/components/user/Users'
import Rights from '@/components/power/Rights'
import Roles from '@/components/power/Roles'


Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { 
      path: '/home', 
      component: Home, 
      // 路由重定向
      redirect: '/welcome',
      // 二级路由
      children:[
        { path: '/welcome', component: Welcome},
        { path: '/users', component: Users},
        { path: '/rights', component: Rights},
        { path: '/roles', component: Roles},
      ]
    }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
// to 将要访问的路径,
// from 从那个路径跳转, 
// next()下一个路径、next('/xxx')强制跳转
  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
